Means for transmitting fluid under pressure.



l PATENTBD JAN. 1s, 1903. W. s. HALSEY. -MEANS PoR TRANSMITTING FLUIDUNDER PRESSURE.-

APPLIGATION FILED JUNE 19, 1902.

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WITNESSES No. 719,250.'` PATBNTUDJAN. 13, 190s.

Y W. S. HALSEY. l MEANS POU TRANSMITTING FLUID UNDER PRESSURE.

APPLICATION FILED JUNE 19. 1902. H0 MODEL! 3 SHEETS-SHEET 2.

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WITNESSES:

l/fha@ d QT www s PETER; co4, PunTauTNo. wAsHlNuTnwuL No. 718,250.PATENTED JAN. is, 190.3. W. S. HALSEY. MEANS EOE TEANSMITTING FLUIDUNDER PRESSURE.

A APPLICATION FILED'JUNEIS, 1902.

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NITnu STATES PATENT OFFICE,

WILLIAM S, HALSEY, OF PITTSBURG, PENNSYLVANIA.

MEANS FOR TRANSMITTING FLUID UNDER PRESSURE.

SPECIFICATION forming part of Letters Patent N o. 718,250, dated January13, 1903.

Applioation'iiled June 19, 1902. Serial No. 112,293. (No modelJ To allwhom, it may concern,.- i

Be it known that l, WILLIAM S. HALsnY, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented a certain new anduseful Improvement in Means for Transmitting Fluid under Pressure, ofWhich improvement the following is a specication.

My present invention relates to and is an improvement in apparatus fortransmitting fiuid under pressure from a supply-reservoir to a device ormechanism in which it is to be utilized of the general class or type inwhich a receiver is fitted to traverse longitudinally on a fixed feedpipe or reservoir and to communicate therewith in its traverse throughports or openings controlled by automatically-operated valves for theadmission of fluid under pressure from the reservoir tothe receiver,such fluid being conducted through suitable tubular connections from thereceiver to the desired point of supply. Instances of apparatus of theclass referred to are exemplified in Letters Patent of the United StatesNo. 532,198, granted and issued to me under date of January 8, 1895;Nos. 637,333 and 653,S02,granted to the Pneumatic Crane Company, as myassignee, under dates of November 21, 1899, and July 17, 1900,respectively, and No. 693,516, granted to me under date of February 18,1902.

The chiefA object of my invention is to pro.

vide means whereby the receiver may be caused to conform to theconditions of curvature of the reservor or air-line feed-pipe whilepassing along it, and thereby to prevent the undue amount of frictionand the tendency to closure of the supply-valves which are occasioned bythe traverse of a straight rigidA lift and without tendency to beingbent when contacted With by the receiver.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawings, Figure 1 is a vertical longitudinalcentral section through a portion of a fluid-pressure-transmissionapparatus, illustrating an application of myinvention; Fig. 2, a similarsection through one end of the inner or guide casing of the receiver;Figs. 3 and 3, transverse sections at the lines o@ x and 'y y,respectively, of Fig. 1; Fig. ,11, a vertical longitudinal centralsection, on an enlarged scale, through one of the valve-casings of thereservoir; Fig. 5, a view, partly in elevation and partly in section, ofa valve-actuating tappet and its shoe; Fig. 6, a transverse sectionthrough the valve-casing in the axial plane of a supply-valve; Fig. 7, avertical longitudinal central section through the guide-casing of thereceiver; Fig. S, a view in elevation and on a reduced scale of areceiver which is rigid and preliminarily bent to a curvature accordingwith that assumed by a reservoir; Fig. 9, a similar view of a receivercomposed of a plurality of articulated sections; Fig. l0, an end View,on an enlarged scale, of a section of the same; Fig. 11, a side View inelevation of a section of the same, and Fig. 12 a transverse sectionthrough a reservoir having a longitudinal tappet-ledge and guide-strips.

My invention is herein, as in the several Letters Patent abovementioned, shown as applied in connectionwith a reservoiror airlinefeed-pipe 1 for the reception of fluid under pressure, which extendsthroughout the length over which the apparatus is desired to operate,and a receiver 2, which surrounds a portion of the length of and ismovable longitudinally on the reservoir and is provided with packing 3near its ends, forming iiuidtight joints With the reservoir, and withtapered or inclined end faces et for actuating the supply-valves 5thereof. The valves 5 control supply ports or openings 5a in castmetalvalve-casings which form portions of the length of the reservoir, theintermediate portions being formed of comparatively light tubes. Thesupply-ports when uncovered establish communication between thereservoir and the receiver, and they are located at IOO such distancesapart in the length of the reservoir that one or more of them willalways be within the receiver. The reservoir is suitably supported atproper intervals, and the receiver is supported upon a track or runway(not shown) by brackets having wheels or rollers which traverse on therunway. The supporting' devices being familiar to those skilled in theart and not forming part of my present invention are not hereinillustrated or described.

In the general features above stated the construction herein set forthaccords substantially with those of the Letters Patent before referredto, and said general features are not in and of themselves claimed as ofmy present invention.

The supply-valves 5 are fitted to traverse on guide-stems 5b, fixed inremovable bushings 5f, which are secured in the valve-casings of thereservoir l, the inner faces of the bushings forming seats for thevalves and the supply-ports 5 extending through the bushings. Each ofthe valves 5 controls two oppositely-located supply-ports 5a, and inorder to prevent the undue friction between the receiver and thereservoir by the reaction of the escaping air the supply-ports arebalanced by being formed in or nearly in the same axial line, so thatthe resultant reaction of the escape of air from one of each pair ofports will be counterbalanced by that of the other and there will be notendency to force the receiver against the reservoir. The valves 5 aredisposed in pairs, and the two valves of each pair are actuated by asingle intermediate tappet 6, which acts upon them through atappet-lever 7, to the ends of which the valves are coupled by pins 7b.In the constructions of the Letters Patent before referred to each ofthe supply-valves was actu ated by a pair of tappets, and the tappetswere raised to unseat the valves by contact with a rigid longitudinalrib, bearing-face, or tappet-ledge fixed to the inner surface of theshell or wall of the receiver and abutting against the outer surface ofthe reservoir.

Under my present invention the straight rigid tappet-ledge theretoforeemployed is dispensed with, and the longitudinal member of the receiver,which actuates the tappets, is maintained in contact with the peripheryof the reservoir, either by being made of sufiicient elasticity toconform to the curvature which is assumed by the reservoir or by beingpermanently bent into a corresponding curve. In the former case thereceiver is preferably provided with an inner or guide casing S, whichmay be, as shown, formed of tubing sufficiently light to be flexible,and which is secured at its ends to the heads of the receiver and fitsintermediately freely around the reservoir l. The flexibility ofthecasing 8 may, ifdesired, be increased by making saw-cuts 8b partiallyaround it at suitable distances apart in its length, as shown :in Fig.7, and at points adjacent to its ends it is bent to form inclines 8, bycontact with which the tappets 6 are raised to unseat the supply-valves5. Two rows of perforations 8, corresponding substantiallyin diameterwith the supply-ports 5, are formed in the casing 8 throughout itslength, through which perforations the fluid under pressure which isreleased from the reservoir by the unseating of the supply-valves passesinto the receiver, and is thence led to the mechanism or appliance inwhich it is to be utilized through a supplypassage 16, to which asupply-pipe leading to said mechanism or appliance may be connected.

As before stated, the two valves of each pair are actuated by a singleintermediate tappet 6. Each of the tappets 6 isprovided with a T-head 6,which itsin alongitudinal recess in a tappet-lever 7, to each end ofwhich a supply-valve 5 is coupled by a pin 7*. The tappets are fitted toslide freely in guidebushings 6b, fixed in the valve-casings of thereservoir, and their lower ends are provided with shoes 6u of largerdiameter, which abut against the adjacent surfaces of the guidecasings 8and traverse with the tappets in sockets formed in the bushings 6b. Anopening 6d formed in the shoe 6 enables the shoe to be forced off thetappet when required.

The supply-valves 5 are normally closed and heid seated, as shown inFig. 4L, by the fluid-pressure in the reservoir and by their gravity andthat of the connected tappet-le- Vers 7. When in thelongitudinalmovement of the receiver 2 its forward or leading inclined face 4 abutsagainst theshoe 6c of one of the tappets 6, it raises said tappet to theinner limit of its traverse, thereby permitting the further traverse ofthe receiver to be effected. The elevation of the tappet causes itsT-head 6a to act on the tappet-lever 7 and to move said lever about thepin 7b, by which it is connected to the valve 5 farther from the leadingend of the receiver as a fulcrum, said valve, which is not at this timewithin the receiver, being held seated by the preponderance ofreservoir-pressure on its top above the atmospheric pressure below it.The valve connected to the opposite end of the tappet-lever is unseatedby the movement thereof, and this valve being Within the receiverdelivers air thereto from the reser Voir through the supply-ports 5,which it controls. When the leading end of the receiver has passed theunseated valve, the tappet drops down a reverse incline to a shorthorizontal portion of the guide-casing 8 between its leading end and theadjacent incline Se, and both valves will be seated during its traverseover said horizontal portion. When the leading incline 8C strikes thetappet-shoe 6c, the tappet will be raised as before; but as both valvesare now within the receiver and both are exposed to the samepreponderance of downward pressure there will be no greater resistanceto the unseating of one valve of the pair than to that of the other. Thetappet- IOO IIO

tion at the leading end of the receiver, as before described.

It will be obvious to those skilled in the art that the essential andcharacteristic featurev of my invention consists in a receiver providedwith a longitudinal bearing or tappetledge which is adapted to conformto the curvature assumed by they reservoir, where the reservoirissurrounded bythe receiver, either by possessing a sufficient degree offlexibility to follow and conform to the curvature of the-l reservoirwithout yielding sufficiently to permit total or partial closure of thesupplyvalves during such periods as they should be and remain unseatedor by being preliminarily and permanently bent to the same curvature. Mypresent invention is not, therefore, limited to the specific formandconstruction of receiver and longitudidal bearing member herein shownand within the conditions above stated. The same may be varied in thediscretion of the skilled mechanic without departure from the spirit andoperative principle of my invention. Thus, for example, the receivermay,\as before stated, be made rigid and preliminarily bent toapproximately the same curvature as that which will be assumed by thesuspended reservoir or air line, as shown in Fig. 8, or may be made upof a plurality of articulated sections, as shown in Figs. 9, 10, and 11.In this case the several sections 2 of the receiver are connected byflexible steel rods 2, passing through lugs 2b on the sections. Again,instead of making the case in the form of a tube entirely surroundingthe reservoir and provided with longitudinal rows of perforations, ashereinbefore set forth, a longitudinal bearing or tappet-ledge 8d andtwo or more longitudinal guide-strips 8e, 'disposed at proper intervalsaround and abutting on the periphery ofI the reservoir and connected tothe receiver, as shown in Fig. l2, may be employed, such structuralmodification being the mechanical equivalent of and performing the samefunctions as the specific construction of guide-tu be herein shown anddescribed.

I claim as my invention and desire to secure by Letters Patent- Il. Thecombination of a'fluid-pressure reservoir, a receiver surrounding andmovable longitudinally thereon, a supply-valve seated over a port in thereservoir, a tappet extending through the shell of the reservoir andadapted to unseat the supplyvalve,and a longitudinal member xed to thereceiver and adapted to abut against the tappet and conform to thecurvature assumed by theportion of the reservoir which is surrounded bythe receiver. 2. Thecombination of a fluid-pressure reservoir, areceiversurrounding and movable longitudinally thereon, a supply-valve seatedover a port in the reservoir, a tappet extending through lthe shell ofthe reservoir and adapted to unseat the supplyvalve,and alongitudinalmember fixed to the receiver and -having flexibility whereby it `isadapted to abut against the tappet and conform to the curvature assumedby the portion of thereservoir which is surrounded by the receiver.

3. The combination of a Huid-pressure reservoir, a receiver surroundingand movable longitudinally thereon,a supply-valve seated over a port inthe reservoir, a tappet extending through the shell of the reservoir andadapted to unseat the supply-valve, and a longitudinal member fixed tothe receiver and adapted to abut against the tappet and conform toy thecurvatureassumed by the portion of the reservoir which is surrounded bythe receiver, and being outwardly inclined from the reservoir adjacentto each of its ends.V

4. The combination of a fluid-pressure reservoir, a receiver surroundingand movable longitudinallythereon,a supply-valve seated over a portinthe reservoir, atappet extend-l ing throughv the shell of thereservoirand adapted to unseat the supply-valve,and a Ilexible memberfixed tothe receiver and abutting longitudinally on the reservoir inline with the tappet and also on two or more lines at other portions ofthe periphery of the reservoir.

5. The combinationA of a fluid-pressure res'- ervoir, a'receiversurrounding and movable longitudinally thereon, a supply-valve seatedover a port in the reservoir, a tappet extending through the shell ofthe reservoir andv adapted to unseat the supply-valve, and a iiexiblemember fixed to the receiver and abutting longitudinally on thereservoir in line with the tappet-and also on two or more lines at otherportions of the periphery of the lreservoir, said flexible member beingoutwardly Ainclined from the reservoir adjacent to each of its ends in alongitudinal plane intersecting the tappet.

6. The combination of a duid-pressure reservoir, a receiver surroundingand movable longitudinally thereon, a supply-valve seated over a port inthe reservoir, a tappet extending through the shell of the reservoir andadapted to unseat the supply-valve, and a iiexible inner or guide tubefixed tothe receiver and surrounding :the reservoir, said tube beingoutwardly inclined from the reservoir adjacent to each of its ends in alongitudinal plane intersecting the tappet and beingprovided with aplurality of perforations Iadapted tocommunicate with the port of thesupply-valve.

7. The combination of a fluid-pressure res- IIO ervoir, a receiversurrounding and movable longitudinally thereon, a pair of supplyvalves,each seated over a port in the reservoir, a tappet extending through theshell of the reservoir intermediate of the supplyvalves of the pair,means lfor unseating said supply-Valves by movement of the tappet, and abearing-surface fixed to the receiver in position to contact with thetappet.

8. The combination of a AHuid-pressure reservoir, a receiver surroundingand movable longitudinally thereon, a pair of supplyvalves, each seatedover a port in the reservoir, a tappet extending through the shell ofthe reservoir intermediate of the supplyvalves of the pair, atappet-lever coupled, at its ends, to said valves and resting on thetappet, and a bearing-surface fixed to the receiver in position tocontact with the tappet.

9. The combination of a fluid-pressure reservoir, a receiver surroundingand movable longitudinally thereon, a pair of supplyvalves, each seatedover a port in the reservoir, a tappet extending through the shell ofthe reservoir intermediate of the supplyvalves of the pair and havingaT-head Within the reservoir, a tappet-lever coupled, at its ends, tosaid valves and resting on the T-head, and a bearing-surface fixed tothe receiverin position to Contact With the tappet.

10. The combination ofafluid-pressure reservoir, a receiver surroundingand movable longitudinally thereon, a supply-valve seated over a port inthe reservoir, a tappet extending through the shell of the reservoir, ashoe of larger diameter fitting over the outer end of the tappet, meansfor unseating the supply-valve by movement of the tappet, and abearing-surface fixed to the receiver in position to contact with thetappet.

l1. The combination of a fluid-pressure reservoir, a receiversurrounding and movable longitudinally thereon, a pair ofoppositelylocated supplyport-s, passing through the shell of thereservoir and having their axes substantially in line to eliminatefriction due to reaction, a supply-valve controlling both supply-ports,a tappet extending through the shell of the reservoir, means forunseating the supply-valve by movement of the tappet, and abearing-surface fixed to the receiver in position to contact with thetappet.

WILLIAM S. HALSEY. Witnesses: l

C. O. GARVIN, JN0. J. MURRAY.

